1 /* -*- c-file-style: "linux" -*-
3 * Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org>
4 * Copyright (C) 2000, 2001, 2002 by Martin Pool <mbp@samba.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 extern int sanitize_paths;
25 extern char curr_dir[MAXPATHLEN];
26 extern struct exclude_list_struct exclude_list;
31 * If 1, send the whole file as literal data rather than trying to
32 * create an incremental diff.
34 * If -1, then look at whether we're local or remote and go by that.
36 * @sa disable_deltas_p()
42 int preserve_links = 0;
43 int preserve_hard_links = 0;
44 int preserve_perms = 0;
45 int preserve_devices = 0;
48 int preserve_times = 0;
55 int delete_excluded = 0;
56 int one_file_system = 0;
57 int protocol_version = PROTOCOL_VERSION;
59 int do_compression = 0;
62 int relative_paths = -1;
72 char *files_from = NULL;
73 int filesfrom_fd = -1;
74 char *remote_filesfrom_file = NULL;
78 int daemon_over_rsh = 0;
82 int safe_symlinks = 0;
83 int copy_unsafe_links = 0;
87 int only_existing = 0;
88 int opt_ignore_existing = 0;
90 int ignore_errors = 0;
91 int modify_window = 0;
93 int checksum_seed = 0;
94 unsigned int block_size = 0;
97 /** Network address family. **/
99 int default_af_hint = 0; /* Any protocol */
101 int default_af_hint = AF_INET; /* Must use IPv4 */
104 /** Do not go into the background when run as --daemon. Good
105 * for debugging and required for running as a service on W32,
106 * or under Unix process-monitors. **/
111 int backup_dir_len = 0;
112 int backup_suffix_len;
113 unsigned int backup_dir_remainder;
115 char *backup_suffix = NULL;
117 char *compare_dest = NULL;
118 char *config_file = NULL;
119 char *shell_cmd = NULL;
120 char *log_format = NULL;
121 char *password_file = NULL;
122 char *rsync_path = RSYNC_PATH;
123 char *backup_dir = NULL;
124 char backup_dir_buf[MAXPATHLEN];
125 int rsync_port = RSYNC_PORT;
130 int always_checksum = 0;
133 #define FIXED_CHECKSUM_SEED 32761
134 #define MAX_BATCH_PREFIX_LEN 256 /* Must be less than MAXPATHLEN-13 */
135 char *batch_prefix = NULL;
137 static int daemon_opt; /* sets am_daemon after option error-reporting */
138 static int modify_window_set;
140 /** Local address to bind. As a character string because it's
141 * interpreted by the IPv6 layer: should be a numeric IP4 or ip6
142 * address, or a hostname. **/
146 static void print_rsync_version(enum logcode f)
148 char const *got_socketpair = "no ";
149 char const *hardlinks = "no ";
150 char const *links = "no ";
151 char const *ipv6 = "no ";
152 STRUCT_STAT *dumstat;
154 #ifdef HAVE_SOCKETPAIR
158 #if SUPPORT_HARD_LINKS
170 rprintf(f, "%s version %s protocol version %d\n",
171 RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
173 "Copyright (C) 1996-2004 by Andrew Tridgell and others\n");
174 rprintf(f, "<http://rsync.samba.org/>\n");
175 rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
176 "%shard links, %ssymlinks, batchfiles, \n",
177 (int) (sizeof (OFF_T) * 8),
178 got_socketpair, hardlinks, links);
180 /* Note that this field may not have type ino_t. It depends
181 * on the complicated interaction between largefile feature
183 rprintf(f, " %sIPv6, %d-bit system inums, %d-bit internal inums\n",
185 (int) (sizeof dumstat->st_ino * 8),
186 (int) (sizeof (uint64) * 8));
187 #ifdef MAINTAINER_MODE
188 rprintf(f, " panic action: \"%s\"\n",
193 rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
198 "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
199 "are welcome to redistribute it under certain conditions. See the GNU\n"
200 "General Public Licence for details.\n"
205 void usage(enum logcode F)
207 print_rsync_version(F);
209 rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
211 rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
212 rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
213 rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
214 rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
215 rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
216 rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
217 rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
218 rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
219 rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
220 rprintf(F," sources separated by space as long as they have same top-level\n");
221 rprintf(F,"\nOptions\n");
222 rprintf(F," -v, --verbose increase verbosity\n");
223 rprintf(F," -q, --quiet decrease verbosity\n");
224 rprintf(F," -c, --checksum always checksum\n");
225 rprintf(F," -a, --archive archive mode, equivalent to -rlptgoD\n");
226 rprintf(F," -r, --recursive recurse into directories\n");
227 rprintf(F," -R, --relative use relative path names\n");
228 rprintf(F," --no-relative turn off --relative\n");
229 rprintf(F," --no-implied-dirs don't send implied dirs with -R\n");
230 rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
231 rprintf(F," --backup-dir make backups into this directory\n");
232 rprintf(F," --suffix=SUFFIX backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
233 rprintf(F," -u, --update update only (don't overwrite newer files)\n");
234 rprintf(F," -l, --links copy symlinks as symlinks\n");
235 rprintf(F," -L, --copy-links copy the referent of all symlinks\n");
236 rprintf(F," --copy-unsafe-links copy the referent of \"unsafe\" symlinks\n");
237 rprintf(F," --safe-links ignore \"unsafe\" symlinks\n");
238 rprintf(F," -H, --hard-links preserve hard links\n");
239 rprintf(F," -p, --perms preserve permissions\n");
240 rprintf(F," -o, --owner preserve owner (root only)\n");
241 rprintf(F," -g, --group preserve group\n");
242 rprintf(F," -D, --devices preserve devices (root only)\n");
243 rprintf(F," -t, --times preserve times\n");
244 rprintf(F," -S, --sparse handle sparse files efficiently\n");
245 rprintf(F," -n, --dry-run show what would have been transferred\n");
246 rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
247 rprintf(F," --no-whole-file turn off --whole-file\n");
248 rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
249 rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
250 rprintf(F," -e, --rsh=COMMAND specify the remote shell\n");
251 rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
252 rprintf(F," --existing only update files that already exist\n");
253 rprintf(F," --ignore-existing ignore files that already exist on receiving side\n");
254 rprintf(F," --delete delete files that don't exist on the sending side\n");
255 rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
256 rprintf(F," --delete-after receiver deletes after transferring, not before\n");
257 rprintf(F," --ignore-errors delete even if there are I/O errors\n");
258 rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
259 rprintf(F," --partial keep partially transferred files\n");
260 rprintf(F," --force force deletion of directories even if not empty\n");
261 rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
262 rprintf(F," --timeout=TIME set I/O timeout in seconds\n");
263 rprintf(F," -I, --ignore-times turn off mod time & file size quick check\n");
264 rprintf(F," --size-only ignore mod time for quick check (use size)\n");
265 rprintf(F," --modify-window=NUM compare mod times with reduced accuracy\n");
266 rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
267 rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
268 rprintf(F," --link-dest=DIR create hardlinks to DIR for unchanged files\n");
269 rprintf(F," -P equivalent to --partial --progress\n");
270 rprintf(F," -z, --compress compress file data\n");
271 rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
272 rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
273 rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
274 rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
275 rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
276 rprintf(F," --files-from=FILE read FILE for list of source-file names\n");
277 rprintf(F," -0 --from0 all *-from file lists are delimited by nulls\n");
278 rprintf(F," --version print version number\n");
279 rprintf(F," --daemon run as an rsync daemon\n");
280 rprintf(F," --no-detach do not detach from the parent\n");
281 rprintf(F," --address=ADDRESS bind to the specified address\n");
282 rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
283 rprintf(F," --port=PORT specify alternate rsyncd port number\n");
284 rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
285 rprintf(F," --no-blocking-io turn off --blocking-io\n");
286 rprintf(F," --stats give some file transfer stats\n");
287 rprintf(F," --progress show progress during transfer\n");
288 rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
289 rprintf(F," --password-file=FILE get password from FILE\n");
290 rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
291 rprintf(F," --write-batch=PREFIX write batch fileset starting with PREFIX\n");
292 rprintf(F," --read-batch=PREFIX read batch fileset starting with PREFIX\n");
294 rprintf(F," -4 --ipv4 prefer IPv4\n");
295 rprintf(F," -6 --ipv6 prefer IPv6\n");
297 rprintf(F," -h, --help show this help screen\n");
301 rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
302 rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
305 enum {OPT_VERSION = 1000, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
306 OPT_DELETE_AFTER, OPT_DELETE_EXCLUDED, OPT_LINK_DEST,
307 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW,
308 OPT_READ_BATCH, OPT_WRITE_BATCH,
309 OPT_REFUSED_BASE = 9000};
311 static struct poptOption long_options[] = {
312 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
313 {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
314 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
315 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
316 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
317 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
318 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
319 {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
320 {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system, 0, 0, 0 },
321 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
322 {"existing", 0, POPT_ARG_NONE, &only_existing, 0, 0, 0 },
323 {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing, 0, 0, 0 },
324 {"delete-after", 0, POPT_ARG_NONE, 0, OPT_DELETE_AFTER, 0, 0 },
325 {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
326 {"force", 0, POPT_ARG_NONE, &force_delete, 0, 0, 0 },
327 {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids, 0, 0, 0 },
328 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
329 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
330 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
331 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
332 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
333 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
334 {"backup", 'b', POPT_ARG_NONE, &make_backups, 0, 0, 0 },
335 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
336 {"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 },
337 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
338 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
339 {"links", 'l', POPT_ARG_NONE, &preserve_links, 0, 0, 0 },
340 {"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 },
341 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
342 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
343 {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 },
344 {"perms", 'p', POPT_ARG_NONE, &preserve_perms, 0, 0, 0 },
345 {"owner", 'o', POPT_ARG_NONE, &preserve_uid, 0, 0, 0 },
346 {"group", 'g', POPT_ARG_NONE, &preserve_gid, 0, 0, 0 },
347 {"devices", 'D', POPT_ARG_NONE, &preserve_devices, 0, 0, 0 },
348 {"times", 't', POPT_ARG_NONE, &preserve_times, 0, 0, 0 },
349 {"checksum", 'c', POPT_ARG_NONE, &always_checksum, 0, 0, 0 },
350 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
351 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
352 {"archive", 'a', POPT_ARG_NONE, &archive_mode, 0, 0, 0 },
353 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
354 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
355 {"recursive", 'r', POPT_ARG_NONE, &recurse, 0, 0, 0 },
356 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
357 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
358 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
359 {"block-size", 'B', POPT_ARG_INT, &block_size, 0, 0, 0 },
360 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
361 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
362 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
363 {"compare-dest", 0, POPT_ARG_STRING, &compare_dest, 0, 0, 0 },
364 {"link-dest", 0, POPT_ARG_STRING, &compare_dest, OPT_LINK_DEST, 0, 0 },
365 /* TODO: Should this take an optional int giving the compression level? */
366 {"compress", 'z', POPT_ARG_NONE, &do_compression, 0, 0, 0 },
367 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
368 {"no-detach", 0, POPT_ARG_NONE, &no_detach, 0, 0, 0 },
369 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
370 {"progress", 0, POPT_ARG_NONE, &do_progress, 0, 0, 0 },
371 {"partial", 0, POPT_ARG_NONE, &keep_partial, 0, 0, 0 },
372 {"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors, 0, 0, 0 },
373 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
374 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
375 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
376 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
377 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
378 {"log-format", 0, POPT_ARG_STRING, &log_format, 0, 0, 0 },
379 {"bwlimit", 0, POPT_ARG_INT, &bwlimit, 0, 0, 0 },
380 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
381 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
382 {"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links, 0, 0, 0 },
383 {"read-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_READ_BATCH, 0, 0 },
384 {"write-batch", 0, POPT_ARG_STRING, &batch_prefix, OPT_WRITE_BATCH, 0, 0 },
385 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
386 {"from0", '0', POPT_ARG_NONE, &eol_nulls, 0, 0, 0},
387 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
388 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
390 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
391 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
397 static char err_buf[200];
401 * Store the option error message, if any, so that we can log the
402 * connection attempt (which requires parsing the options), and then
403 * show the error later on.
405 void option_error(void)
407 int save_daemon = am_daemon;
410 strcpy(err_buf, "Error parsing options: "
411 "option may be supported on client but not on server?\n");
414 rwrite(FLOG, err_buf, strlen(err_buf));
416 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
417 am_daemon = save_daemon;
422 * Tweak the option table to disable all options that the rsyncd.conf
423 * file has told us to refuse.
425 static void set_refuse_options(char *bp)
427 struct poptOption *op;
431 if ((cp = strchr(bp, ' ')) != NULL)
433 for (op = long_options; ; op++) {
436 "Unknown option %s in \"refuse options\" setting\n",
440 if (strcmp(bp, op->longName) == 0) {
441 op->val = (op - long_options)+OPT_REFUSED_BASE;
453 static int count_args(char const **argv)
457 while (argv[i] != NULL)
465 * Process command line arguments. Called on both local and remote.
467 * @retval 1 if all options are OK; with globals set to appropriate
470 * @retval 0 on error, with err_buf containing an explanation
472 int parse_arguments(int *argc, const char ***argv, int frommain)
475 char *ref = lp_refuse_options(module_id);
480 set_refuse_options(ref);
482 /* TODO: Call poptReadDefaultConfig; handle errors. */
484 /* The context leaks in case of an error, but if there's a
485 * problem we always exit anyhow. */
486 pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
488 while ((opt = poptGetNextOpt(pc)) != -1) {
489 /* most options are handled automatically by popt;
490 * only special cases are returned and listed here. */
494 print_rsync_version(FINFO);
497 case OPT_MODIFY_WINDOW:
498 /* The value has already been set by popt, but
499 * we need to remember that we're using a
500 * non-default setting. */
501 modify_window_set = 1;
504 case OPT_DELETE_AFTER:
509 case OPT_DELETE_EXCLUDED:
515 add_exclude(&exclude_list, poptGetOptArg(pc), 0);
519 add_exclude(&exclude_list, poptGetOptArg(pc),
523 case OPT_EXCLUDE_FROM:
524 arg = poptGetOptArg(pc);
526 arg = alloc_sanitize_path(arg, curr_dir);
527 add_exclude_file(&exclude_list, arg,
531 case OPT_INCLUDE_FROM:
532 arg = poptGetOptArg(pc);
534 arg = alloc_sanitize_path(arg, curr_dir);
535 add_exclude_file(&exclude_list, arg,
536 XFLG_FATAL_ERRORS | XFLG_DEF_INCLUDE);
555 exit_cleanup(RERR_SYNTAX);
565 case OPT_WRITE_BATCH:
566 /* popt stores the filename in batch_prefix for us */
568 checksum_seed = FIXED_CHECKSUM_SEED;
572 /* popt stores the filename in batch_prefix for us */
574 checksum_seed = FIXED_CHECKSUM_SEED;
582 snprintf(err_buf, sizeof err_buf,
583 "hard links are not supported on this %s\n",
584 am_server ? "server" : "client");
589 /* A large opt value means that set_refuse_options()
590 * turned this option off (opt-BASE is its index). */
591 if (opt >= OPT_REFUSED_BASE) {
592 struct poptOption *op =
593 &long_options[opt-OPT_REFUSED_BASE];
594 int n = snprintf(err_buf, sizeof err_buf,
595 "This server does not support --%s\n",
598 snprintf(err_buf+n, sizeof err_buf-n,
599 " (-%c)\n", op->shortName);
602 snprintf(err_buf, sizeof err_buf,
604 am_server ? "on remote machine: " : "",
605 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
613 if (preserve_links && !am_sender) {
614 snprintf(err_buf, sizeof err_buf,
615 "symlinks are not supported on this %s\n",
616 am_server ? "server" : "client");
621 #if !SUPPORT_HARD_LINKS
622 if (preserve_hard_links) {
623 snprintf(err_buf, sizeof err_buf,
624 "hard links are not supported on this %s\n",
625 am_server ? "server" : "client");
630 if (write_batch && read_batch) {
632 "write-batch and read-batch can not be used together\n");
633 exit_cleanup(RERR_SYNTAX);
635 if (batch_prefix && strlen(batch_prefix) > MAX_BATCH_PREFIX_LEN) {
637 "the batch-file prefix must be %d characters or less.\n",
638 MAX_BATCH_PREFIX_LEN);
639 exit_cleanup(RERR_SYNTAX);
642 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
643 rprintf(FERROR, "the --temp-dir path is WAY too long.\n");
644 exit_cleanup(RERR_SYNTAX);
647 if (do_compression && (write_batch || read_batch)) {
649 "compress can not be used with write-batch or read-batch\n");
650 exit_cleanup(RERR_SYNTAX);
663 preserve_devices = 1;
666 if (relative_paths < 0)
667 relative_paths = files_from? 1 : 0;
669 *argv = poptGetArgs(pc);
671 *argc = count_args(*argv);
675 if (sanitize_paths) {
677 for (i = *argc; i-- > 0; )
678 (*argv)[i] = alloc_sanitize_path((*argv)[i], NULL);
680 tmpdir = alloc_sanitize_path(tmpdir, curr_dir);
682 compare_dest = alloc_sanitize_path(compare_dest, curr_dir);
684 backup_dir = alloc_sanitize_path(backup_dir, curr_dir);
686 files_from = alloc_sanitize_path(files_from, curr_dir);
696 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
697 backup_suffix_len = strlen(backup_suffix);
698 if (strchr(backup_suffix, '/') != NULL) {
699 rprintf(FERROR, "--suffix cannot contain slashes: %s\n",
701 exit_cleanup(RERR_SYNTAX);
704 backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
705 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
706 if (backup_dir_remainder < 32) {
707 rprintf(FERROR, "the --backup-dir path is WAY too long.\n");
708 exit_cleanup(RERR_SYNTAX);
710 if (backup_dir_buf[backup_dir_len - 1] != '/') {
711 backup_dir_buf[backup_dir_len++] = '/';
712 backup_dir_buf[backup_dir_len] = '\0';
714 if (verbose > 1 && !am_sender)
715 rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
716 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
718 "--suffix cannot be a null string without --backup-dir\n");
719 exit_cleanup(RERR_SYNTAX);
722 if (do_progress && !verbose)
727 if (*argc != 2 && !(am_server && am_sender && *argc == 1)) {
729 exit_cleanup(RERR_SYNTAX);
731 if (strcmp(files_from, "-") == 0) {
734 remote_filesfrom_file = "-";
736 else if ((colon = find_colon(files_from)) != 0) {
739 exit_cleanup(RERR_SYNTAX);
741 remote_filesfrom_file = colon+1 + (colon[1] == ':');
742 if (strcmp(remote_filesfrom_file, "-") == 0) {
743 rprintf(FERROR, "Invalid --files-from remote filename\n");
744 exit_cleanup(RERR_SYNTAX);
747 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
748 if (filesfrom_fd < 0) {
749 rsyserr(FERROR, errno,
750 "failed to open files-from file %s",
752 exit_cleanup(RERR_FILEIO);
762 * Construct a filtered list of options to pass through from the
763 * client to the server.
765 * This involves setting options that will tell the server how to
766 * behave, and also filtering out options that are processed only
769 void server_options(char **args,int *argc)
772 static char argstr[50];
777 if (blocking_io == -1)
780 args[ac++] = "--server";
782 if (daemon_over_rsh) {
783 args[ac++] = "--daemon";
785 /* if we're passing --daemon, we're done */
790 args[ac++] = "--sender";
794 for (i = 0; i < verbose; i++)
797 /* the -q option is intentionally left out */
811 /* We don't need to send --no-whole-file, because it's the
812 * default for remote transfers, and in any case old versions
813 * of rsync will not understand it. */
815 if (preserve_hard_links)
821 if (preserve_devices)
844 /* this is a complete hack - blame Rusty
846 this is a hack to make the list_only (remote file list)
848 if (list_only && !recurse)
857 if (asprintf(&arg, "-B%u", block_size) < 0)
862 if (max_delete && am_sender) {
863 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
869 char *r_or_w = write_batch ? "write" : "read";
870 if (asprintf(&arg, "--%s-batch=%s", r_or_w, batch_prefix) < 0)
876 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
882 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
888 args[ac++] = "--backup-dir";
889 args[ac++] = backup_dir;
892 /* Only send --suffix if it specifies a non-default value. */
893 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
894 /* We use the following syntax to avoid weirdness with '~'. */
895 if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
901 args[ac++] = "--delete-excluded";
902 else if (delete_mode)
903 args[ac++] = "--delete";
906 args[ac++] = "--size-only";
908 if (modify_window_set) {
909 if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
915 args[ac++] = "--partial";
918 args[ac++] = "--force";
921 args[ac++] = "--delete-after";
924 args[ac++] = "--ignore-errors";
926 if (copy_unsafe_links)
927 args[ac++] = "--copy-unsafe-links";
930 args[ac++] = "--safe-links";
933 args[ac++] = "--numeric-ids";
935 if (only_existing && am_sender)
936 args[ac++] = "--existing";
938 if (opt_ignore_existing && am_sender)
939 args[ac++] = "--ignore-existing";
942 args[ac++] = "--temp-dir";
946 if (compare_dest && am_sender) {
947 /* the server only needs this option if it is not the sender,
948 * and it may be an older version that doesn't know this
949 * option, so don't send it if client is the sender.
951 args[ac++] = link_dest ? "--link-dest" : "--compare-dest";
952 args[ac++] = compare_dest;
955 if (files_from && (!am_sender || remote_filesfrom_file)) {
956 if (remote_filesfrom_file) {
957 args[ac++] = "--files-from";
958 args[ac++] = remote_filesfrom_file;
960 args[ac++] = "--from0";
962 args[ac++] = "--files-from=-";
963 args[ac++] = "--from0";
971 out_of_memory("server_options");
975 * Return the position of a ':' IF it is not part of a filename (i.e. as
976 * long as it doesn't occur after a slash.
978 char *find_colon(char *s)
986 /* now check to see if there is a / in the string before the : - if there is then
987 discard the colon on the assumption that the : is part of a filename */